﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using MusicOnLine.Models;
using System.Web.Security;
using MusicOnLine.Common;

namespace MusicOnLine.Controllers
{
    public class AccountController : Controller
    {
        //
        // GET: /Account/

        public ActionResult Index()
        {
            return View();
        }
      
        public ActionResult Register()
        {
            return View();
        }

        public ActionResult Logon()
        {
            return View();
        }

        [HttpPost]
        public ActionResult Logon(LogOnModel model,string returnUrl)
        {
            if (ModelState.IsValid)
            {
                if (System.Web.Security.Membership.ValidateUser(model.UserName, model.Password))
                {
                    FormsAuthentication.SetAuthCookie(model.UserName, model.RememberMe);
                    if (Url.IsLocalUrl(returnUrl) && returnUrl.Length > 1 && returnUrl.StartsWith("/")
                       && !returnUrl.StartsWith("//") && !returnUrl.StartsWith("/\\"))
                    {
                        return Redirect(returnUrl);                        
                    }
                    else
                    {                        
                        return RedirectToAction("Index", "Home");
                    }
                }
                else
                {
                    ModelState.AddModelError("", "用户名或密码错误");
                }
            }
            return View(model);
        }

        public ActionResult Logout()
        {
            FormsAuthentication.SignOut();
            return RedirectToAction("Index", "Home");
        }

        [HttpPost]
        public ActionResult Register(RegisterModel model)
        {
            if (ModelState.IsValid)
            {
                // Attempt to register the user
                var provider = (MOLMembershipProvider)System.Web.Security.Membership.Provider;
                MusicOnLine.Models.Membership member = new Models.Membership();
                member.UserID = Guid.NewGuid();
                member.UserName = model.UserName.Trim();
                member.Password = model.Password.Trim();
                member.Email = model.Email.Trim();
                MembershipCreateStatus createStatus;
                provider.CreateUser(member,out createStatus);

                if (createStatus == MembershipCreateStatus.Success)
                {
                    FormsAuthentication.SetAuthCookie(model.UserName, false /* createPersistentCookie */);
                    return RedirectToAction("Index", "Home");
                }
                else
                {
                  ModelState.AddModelError("", ErrorCodeToString(createStatus));
                }
            }
            // If we got this far, something failed, redisplay form
            return View(model);
        }

        public ActionResult AuthorizeError()
        {
            return View();
        }
        private string ErrorCodeToString(MembershipCreateStatus createStatus)
        {
            switch (createStatus)
            {
                case MembershipCreateStatus.DuplicateUserName:
                    return "User name already exists. Please enter a different user name.";

                case MembershipCreateStatus.DuplicateEmail:
                    return "A user name for that e-mail address already exists. Please enter a different e-mail address.";

                case MembershipCreateStatus.InvalidPassword:
                    return "The password provided is invalid. Please enter a valid password value.";

                case MembershipCreateStatus.InvalidEmail:
                    return "The e-mail address provided is invalid. Please check the value and try again.";

                case MembershipCreateStatus.InvalidAnswer:
                    return "The password retrieval answer provided is invalid. Please check the value and try again.";

                case MembershipCreateStatus.InvalidQuestion:
                    return "The password retrieval question provided is invalid. Please check the value and try again.";

                case MembershipCreateStatus.InvalidUserName:
                    return "The user name provided is invalid. Please check the value and try again.";

                case MembershipCreateStatus.ProviderError:
                    return "The authentication provider returned an error. Please verify your entry and try again. If the problem persists, please contact your system administrator.";

                case MembershipCreateStatus.UserRejected:
                    return "The user creation request has been canceled. Please verify your entry and try again. If the problem persists, please contact your system administrator.";

                default:
                    return "An unknown error occurred. Please verify your entry and try again. If the problem persists, please contact your system administrator.";
            }
        }

        protected override void Dispose(bool disposing)
        {
           //
            base.Dispose(disposing);
        }
    }
}
